13626660450 has 96 divisors (see below), whose sum is σ = 36441417600. Its totient is φ = 3349854720.

The previous prime is 13626660433. The next prime is 13626660457. The reversal of 13626660450 is 5406662631.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 13626660399 and 13626660408.

It is not an unprimeable number, because it can be changed into a prime (13626660457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1631886 + ... + 1640214.

It is an arithmetic number, because the mean of its divisors is an integer number (379598100).

Almost surely, 2^13626660450 is an apocalyptic number.

13626660450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13626660450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18220708800).

13626660450 is an abundant number, since it is smaller than the sum of its proper divisors (22814757150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13626660450 is a wasteful number, since it uses less digits than its factorization.

13626660450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9196 (or 9191 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 13626660450 in words is "thirteen billion, six hundred twenty-six million, six hundred sixty thousand, four hundred fifty".